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5 votes
Please help sparx is so annoying

Please help sparx is so annoying-example-1
User Tony Smith
by
8.4k points

1 Answer

1 vote

Answer:

BELOW

Explanation:

EXTERIOR ANGLES of any polygon sum to 360 degrees

there are 9 of them in this 9 - gon so each is 40 degrees

interior angles allows you to label the other angle as 40 °

Sum of INTERIOR angles of n-gon : (n-2 ) * 180° = (9-2)180° = 1260°

so EACH is 1260° / 9 = 140°

so angle at A plus 40° = 140° then angle at A = 100°

Please help sparx is so annoying-example-1
User Kroe
by
8.0k points

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